20787574284

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{647}}^1\times {\mathrm{24121}}^1$

素因数の和:24815

約数の個数: 72

約数和(自身を含む): 54052191648

約数和(自身を除く): 33264617364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 647, 666, 1294, 1332, 1941, 2588, 3882, 5823, 7764, 11646, 23292, 23939, 24121, 47878, 48242, 71817, 72363, 95756, 96484, 143634, 144726, 215451, 217089, 287268, 289452, 430902, 434178, 861804, 868356, 892477, 1784954, 2677431, 3569908, 5354862, 8032293, 10709724, 15606287, 16064586, 31212574, 32129172, 46818861, 62425148, 93637722, 140456583, 187275444, 280913166, 561826332, 577432619, 1154865238, 1732297857, 2309730476, 3464595714, 5196893571, 6929191428, 10393787142, 20787574284]

約数ペア:

[(1, 20787574284), (2, 10393787142), (3, 6929191428), (4, 5196893571), (6, 3464595714), (9, 2309730476), (12, 1732297857), (18, 1154865238), (36, 577432619), (37, 561826332), (74, 280913166), (111, 187275444), (148, 140456583), (222, 93637722), (333, 62425148), (444, 46818861), (647, 32129172), (666, 31212574), (1294, 16064586), (1332, 15606287), (1941, 10709724), (2588, 8032293), (3882, 5354862), (5823, 3569908), (7764, 2677431), (11646, 1784954), (23292, 892477), (23939, 868356), (24121, 861804), (47878, 434178), (48242, 430902), (71817, 289452), (72363, 287268), (95756, 217089), (96484, 215451), (143634, 144726)]